Atractus collaris
Peracca, 1897
Santa Cruz field station, Depto Loreto, Peru. August 13, 2014.
This snake was found in the early evening, crawling on one of the forest trails near the Madre Selva field station. Drab and unassuming dorsally, but bright and flashy ventrally, this species is most often seen at night after rainfall.
My Flickr album for this species is here.
Peru 2014 Flickr album is here.
HerpMapper records for this species are here.